00585cam a22002051 4500 pa 57000006 DLC 20260227111853.0 801120s1957 dcua b 000 0 spa pa 57000006 (OCoLC)6959648 DLC KWiU DLC HD7676 .P3 Pan American Union. Section of Social Work. Servicio social industrial en América Latina. Wáshington [1957] 51 p. tables. 28 cm. Bibliography: p. [33] Industrial welfare Latin America. 51336 51336